The Beta Queen

Four years has passed since Izarra took the throne. Four years since Kai began looking for Dale. Without a mate or an heir, a group of Alpha's decide to challenge her position and until she proves herself once more she will be the Beta Queen.

I guess that whole thing about its almost impossible to have babies with anyone but your true mate has been changed in this story?? All of them but Cullen and Tatiana isn't true mates so..............???????